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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra Transmission Problems
506 messages, Last post on Dec 01, 2009 at 1:57 PM
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I posted before about my 2006 5.3 V8 sierra giving a bump when starting out slow..the bump occurs at around 15mph at the first shift. It does not do it if you can take a little faster. I took in to the dealer and they said there couldn't be any thing serious wrong or I would get a warning light. However they did re-program the transmission because of a service bulliten. It did nothing for the bump. A transimission shop says they thought it was the coolant pump hanging up. The service manager said if that was happening I would get a light. I have 6 months left on the warranty. does anyone have any ideas? Does any of this make sense? thanks
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Replying to: b36 (Dec 06, 2008 6:04 pm) Joe
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Replying to: grumphy (Dec 07, 2008 12:34 pm) If your truck has a lot of hard tow miles it could be in need of some internal parts. If it's just 112k everyday miles then it could just be the 1-2 shift servo. The servo's are on the outside (side) of the 4L60e in your truck (assuming it's a 1500). It's an inexpensive quick fix also. The Hydro-Matic (GM) transmission is one of the best out there. BMW even uses the Hydro-Matic automatic trans. in their 5 Series cars. It's a very solid well built transmission. Don't listen to the GM haters out there. |
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Replying to: dkelley85 (Dec 05, 2008 8:37 pm) I've always driven a Chevrolet from an '86 Chevy 3/4 ton 4x4,'96 Chevy Z71 to an '07 Tahoe and back to a Silverado. General Motors, GM Powertrain, makes the best most solid powertrains bar none. GM has the best interiors, the best ride and they are the most reliable out there. Don't listen to the GM haters out there. We really do need the domestic auto makers around. They are a large part of our Gross Domestic Product and of the Big Three at least General Motors makes a great product. GM's board just needs to replace parts of upper management including CEO Rick Wagoner possibly with Bob Lutz the "car czar" who is credited with the recent improvements at GM. Besides, what would the president do without his sweet custom armored Cadillac. Our lawmakers won't let the Big Three fail, too much of a trickle down effect. They've just been burned twice by AIG (A**holes, Ignorant and Greedy) now, so Congress just wants a solid plan. USA-1!! |
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Replying to: drapheus (Oct 16, 2008 10:51 am) You need to check fuel pressure at the rail on motor and check it at the fuel filter. If you got good pressure at the filter suppect the the fuel pressure regulator. If pressure the same both spots suppect fuel pump is weak. |
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Anyone had problems with there truck trying to start off in high gear and will not down shift or shift into overdrive. The problem is intermittent, and there is no diagnostic codes shown. Sometimes I can put back in park and shift back to drive and that fixes it momentarily.
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Replying to: Pard (Dec 16, 2008 5:58 am) |
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Hello everyone, I am having a very difficult time removing the transmission pan on my 04 Suburban. The bracket that holds the shift cable is blocking me from dropping the pan down. I have tried bending it out of the way, but that doesn't work as it is too stiff to bend it very far. And I don't want to break it off of the transmission case. It looks like I need to drop/remove the exhaust Y and then I can "fold" the pan down at a 90 degree angle and slip it out from behind the bracket. Any suggestions? Thank you in advance for any help. John
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Replying to: jamonett (Dec 20, 2008 8:19 pm)
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Trans fluid is leaking through the wire harness plug. What is the cause. Is replacing the harness the only remedy? Can the fluid cause a short circuit at the plug. What seals the plug on the inside of the case? How difficult is it to replace the harness? Jim |
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